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Other Noncurrent Assets and Liabilities	12 Months Ended
Other Noncurrent Assets and Liabilities	Apr. 30, 2011
Other Noncurrent Assets and Liabilities
Other Noncurrent Assets and Liabilities	NOTE 12: OTHER NONCURRENT ASSETS AND LIABILITIES We have various compensation plans where we make contributions to eligible participant accounts, which may also include deferred compensation of the participant, with the participants then accruing income on these amounts. Included in other noncurrent liabilities is $152.7 million and $135.5 million at April 30, 2011 and 2010, respectively, reflecting our obligation under these plans. We may purchase whole-life insurance contracts on certain employee participants to recover distributions made or to be made under the plans. The cash surrender value of the policies and other assets held by the trusts are recorded in other noncurrent assets and totaled $115.0 million and $112.4 million at April 30, 2011 and 2010, respectively. These assets are restricted, as they are only available to fund the related liabilities.